[INFO] fetching crate terminal_graphics 0.1.5...
[INFO] checking terminal_graphics-0.1.5 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate terminal_graphics 0.1.5 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate terminal_graphics 0.1.5 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate terminal_graphics 0.1.5
[INFO] finished tweaking crates.io crate terminal_graphics 0.1.5
[INFO] tweaked toml for crates.io crate terminal_graphics 0.1.5 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3f7f68d07788da93835f57741576f29808eac9753607c810f2af1661e3e8c73
[INFO] running `Command { std: "docker" "start" "-a" "a3f7f68d07788da93835f57741576f29808eac9753607c810f2af1661e3e8c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3f7f68d07788da93835f57741576f29808eac9753607c810f2af1661e3e8c73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3f7f68d07788da93835f57741576f29808eac9753607c810f2af1661e3e8c73", kill_on_drop: false }`
[INFO] [stdout] a3f7f68d07788da93835f57741576f29808eac9753607c810f2af1661e3e8c73
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 675e391af48ad7ef55cef92883c73e1c356e77eaadf554d82b3bd785410c1931
[INFO] running `Command { std: "docker" "start" "-a" "675e391af48ad7ef55cef92883c73e1c356e77eaadf554d82b3bd785410c1931", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking terminal_graphics v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |         graphic: &'a mut Graphic,
[INFO] [stdout]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:62:52
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stdout]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:48:35
[INFO] [stdout]    |
[INFO] [stdout] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:72:58
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stdout]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:77:68
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stdout]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:82:56
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stdout]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:17:29
[INFO] [stdout]    |
[INFO] [stdout] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stdout]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:41:26
[INFO] [stdout]    |
[INFO] [stdout] 41 |         graphic: &'a mut Graphic,
[INFO] [stdout]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/container.rs:62:52
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stdout]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:48:35
[INFO] [stdout]    |
[INFO] [stdout] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stdout]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:72:58
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stdout]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:77:68
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stdout]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/graphics/mod.rs:82:56
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stdout]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/display/display.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |             for mut pixel in pixels {
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/display/display.rs:48:17
[INFO] [stdout]    |
[INFO] [stdout] 48 |             for mut pixel in pixels {
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "675e391af48ad7ef55cef92883c73e1c356e77eaadf554d82b3bd785410c1931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675e391af48ad7ef55cef92883c73e1c356e77eaadf554d82b3bd785410c1931", kill_on_drop: false }`
[INFO] [stdout] 675e391af48ad7ef55cef92883c73e1c356e77eaadf554d82b3bd785410c1931